408873218673 has 8 divisors (see below), whose sum is σ = 547504053408. Its totient is φ = 271412264864.

The previous prime is 408873218659. The next prime is 408873218683. The reversal of 408873218673 is 376812378804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408873218673 - 2⁴ = 408873218657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408873218683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292469415 + ... + 292470812.

It is an arithmetic number, because the mean of its divisors is an integer number (68438006676).

Almost surely, 2^408873218673 is an apocalyptic number.

It is an amenable number.

408873218673 is a deficient number, since it is larger than the sum of its proper divisors (138630834735).

408873218673 is a wasteful number, since it uses less digits than its factorization.

408873218673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584940463.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 408873218673 in words is "four hundred eight billion, eight hundred seventy-three million, two hundred eighteen thousand, six hundred seventy-three".